<template>
  <ContentField v-if="!$store.state.user.pulling_info">
    <div class="row justify-content-md-center">
      <div class="col-3">
        <form @submit.prevent="login">
          <div class="mb-3">
            <label for="username" class="form-label">用户名</label>
            <input v-model="username" type="text" class="form-control" id="username" placeholder="请输入用户名">
          </div>
          <div class="mb-3">
            <label for="password" class="form-label">密码</label>
            <input v-model="password" type="password" class="form-control" id="password" placeholder="请输入密码">
          </div>
          <div class="error-massage">{{ error_message }}</div>
          <button class="btn btn-primary" type="submit">提交</button>
        </form>
      </div>
    </div>
  </ContentField>
</template>

<script>
import ContentField from '../../../components/ContentField.vue'
import { useStore } from 'vuex'
import { ref } from 'vue'
import router from '../../../router'

export default {
  components: { ContentField },
  component: {
    ContentField
  },
  setup() {
    const store = useStore();
    let username = ref('');
    let password = ref('');
    let error_message = ref('');

    const jwt_token = localStorage.getItem("jwt_token");
    if (jwt_token) {
      store.commit("updateToken", jwt_token);
      store.dispatch("getinfo", {
        success() {
          router.push( { name: "home" } );
          store.commit("updatePullingInfo", false);  
        },
        error() {
          store.commit("updatePullingInfo", false);  
        }
      })
    } else {
        store.commit("updatePullingInfo", false);  
    }

    const login = () => {
      error_message.value = "";
      store.dispatch("login",{
        username: username.value,
        password: password.value,
        success() {
          store.dispatch("getinfo", {
            success() {
              router.push({ name: 'home' });
              console.log(store.state.user);
            }
          });
        },
        error() {
          error_message.value = "用户名或密码错误";
        }

      })
    }

    return {
      username,
      password,
      error_message,
      login,
    }
  }
}
</script>
   
<style scoped>
  button {
    width: 100%;
  }
  div.error-massage{
    color: red;
  }
</style>